我有一个枚举声明如下:
typedef enum mail_ {
Out = 0,
Int = 1,
Spam = 2
} mail;
功能:
mail status;
int fill_mail_data(int i, &status);
在上面的函数中,status
被填满并将发送。
当我通过swig尝试这个时,我面临以下问题:
mail
的详细信息。当我尝试打印mail.__doc__
或help(mail)
时,它会抛出错误,说没有这样的属性,尽管我可以使用这些值(Spam
,In
,和Out
)。main
是什么,因此它不接受mail
的任何函数参数。答案 0 :(得分:5)
对于SWIG,enum
只是一个整数。要将它用作示例中的输出参数,您还可以将参数声明为输出参数,如下所示:
%module x
// Declare "mail* status" as an output parameter.
// It will be returned along with the return value of a function
// as a tuple if necessary, and will not be required as a function
// parameter.
%include <typemaps.i>
%apply int *OUTPUT {mail* status};
%inline %{
typedef enum mail_ {
Out = 0,
Int = 1,
Spam = 2
} mail;
int fill_mail_data(int i, mail* status)
{
*status = Spam;
return i+1;
}
%}
使用:
>>> import x
>>> dir(x) # Note no "mail" object, just Int, Out, Spam which are ints.
['Int', 'Out', 'Spam', '__builtins__', '__cached__', '__doc__', '__file__', '__initializing__', '__loader__', '__name__', '__package__', '_newclass', '_object', '_swig_getattr', '_swig_property', '_swig_repr', '_swig_setattr', '_swig_setattr_nondynamic', '_x', 'fill_mail_data']
>>> x.fill_mail_data(5)
[6, 2]
>>> ret,mail = x.fill_mail_data(5)
>>> mail == x.Spam
True